References
- 1824 . Histoire de la Télégraphie See also by Chappe l'Ainé (Paris. The author was Ignace Urbain Jean, eldest brother of Claude, Pierre François, René and Abraham Chappe, all of whom were more or less connected with the telegraph. It is interesting to find in this book Colonel Macdonald's statements firmly contradicted
- 1859 . The Telegraph Manual by Taliaferro P. Shaffner (New York
- 1923 . Das Weltreich der Technik Part 1 (Berlin
- 1794 . 51 —–
- 1797 . A Letter to the Earl of Charlemont on the Tellograph and on the Defence of Ireland A full story of the contrivance is given in Edgeworth's pamphlet entitled. He relates that two Secretaries at Phoenix Park volunteered to help in a demonstration of his “reconnoitring” apparatus, and were promptly arrested by a “centinel,” who thought from the sinister appearance of these triangles that they had some evil design. The incident caused Edgeworth and his companions a good deal of artless amusement
- 1797 . An Essay on the different Modes of Communication by Signals, etc. by J. Gamble, A.M.
- 1794 . Versuch ueber Telegraphie und Telegraphen Cf. by J. L. Boeckmann (Carlsruhe,; Ueber Signal-, Order und Zielsschreiberei in die Ferne, by Prof. J. A. B. Bergstraesser (Frankfurt, 1795)
- General Sir Charles W. Pasley, K.C.B. (R.E.), to be described later
- 1934 . MM. 98 See January, p., n. 2
- It is evident on closer scrutiny that twelve arms on one pivot would really be necessary! See Example “321.”
- Meaning the French coast machines
- If the word “however” be read here, the meaning will be clearer
- Reproduced from an exhibit in the Imperial Postal Museum, Berlin
- 1924 . Fighting Forces 480 September
- The sketch shows the building near the London Brighton and South Coast Railway terminus, seen from the middle of London Bridge. It is an end station and the spectator is looking at it from behind. It is signalling the number “8779.”
- Known to the operators as “stretchers.”
- The sketch shows Llysfaen station, signalling “2623.”
- A Code of Signals for the use of the Mercantile Navy by B. J. Walker, Lieut., R.N
- 1897 . Third and Final Report, Cmd. 8354
- International Code As a matter of fact, for purposes not connected with the the French semaphores had already been accustomed to working with six, numbered, arm positions